a problem with sun studio 12 installation

i have deleted installation folder of sun studio 12 (/opt/sun) and now ,when i run installer again, it doesn't allow me to install any components. how can i resolve this problem?
[186 byte] By [Areseraa] at [2007-11-27 6:58:49]
# 1
HiI think in the installation notes there is a section on dealing with the files that get put in /var. This may apply in your case.Paul
Paul_Floyda at 2007-7-12 18:49:20 > top of Java-index,Development Tools,Solaris and Linux Development Tools...